Patrick’s Rasbora (Rasbora patrickyapi)
Patrick’s Rasbora is a rare and attractive blackwater rasbora from central Kalimantan, Indonesian Borneo. It is a peaceful shoaling fish with a slim body, dark lateral stripe, subtle metallic sheen and reddish tones in the fins, especially in mature males. Although small and elegant, this is best treated as a specialist soft-water species rather than a basic beginner rasbora, as it comes from peat swamp and blackwater habitats where clean, stable, low-mineral water is important.
Common Name
Patrick’s Rasbora. Also sometimes sold as Patrickyapi Rasbora.
Scientific Name (Latin)
Rasbora patrickyapi
Maximum Size
Around 5–6 cm, with some reference
| Characteristic | Detail |
|---|---|
| Origin | Central Kalimantan, Indonesian Borneo |
| Habitat | Peat swamp and blackwater environments |
| Behavior | Peaceful shoaling fish |
| Body Type | Slim body with dark lateral stripe |
| Fins | Reddish tones in mature males; subtle metallic sheen |
FAQ
What kind of water conditions does Patrick’s Rasbora require?
Patrick’s Rasbora thrives in clean, stable, low-mineral soft water typical of blackwater habitats. It is best kept in a well-maintained aquarium with a pH between 5.0 and 6.0 and low hardness levels.
Is Patrick’s Rasbora suitable for beginner aquarists?
No, Patrick’s Rasbora is best suited for experienced aquarists due to its specific needs for soft, stable, low-mineral water and its sensitivity to water changes or fluctuations.
How big does Patrick’s Rasbora grow?
It reaches a maximum size of around 5–6 cm.
Jack Peters –
I’ve kept Patrick’s Rasbora for six months in a dedicated blackwater tank. The fish are active and show beautiful coloration, especially in the red fins when mature. I’ve had to maintain very stable water parameters, but it’s worth the effort for their elegance.
Angela Parsons –
The fish are peaceful and form a nice shoal. I noticed the metallic sheen on their sides and the dark stripe stands out well. I keep them in a soft water setup with peat filtration, and they seem to thrive.
Connor Parr –
This is one of the most visually striking rasbora species I’ve ever seen. The red fins and slim body are unique. I’ve had to monitor water quality closely, but the fish are healthy and active.